It's always funny to me when people say they "believe" in evolution. No belief is required. The thing in question is the scale. We have never made a discovery that has taken us a step backwards when it comes to what we know about evolution. It is also not meant to be an explanation for the why, just the how. We don't know the why and so some of us choose beliefs in that absence of that information. Belief by definition is a choice. It's choosing something in the absence of an answer or explanation. And it is doing so without sufficient evidence or proof for the claim. There will never be an amount of belief that makes something true. That being said, I think it's better to entertain and test ideas, so I don't have beliefs. If an idea doesn't stand up to the scrutiny of logic and reason when critical thinking is applied, I dismiss it. I'll trust someone who I think means to seek the truth as opposed to someone adhering to a belief. Beliefs are the easy way out. They are complacency.